This systematic review synthesises the existing research evidence regarding the experiences of young people reintegrated to a mainstream secondary school (MSS) through alternative provision (AP), following permanent exclusion. Eight studies, including one international study, were critically appraised and synthesised following PRISMA guidelines. Three global themes were identified: outcomes of reintegration; factors that support reintegration (facilitators); factors that limit reintegration success (barriers). Findings were configured into a chronological reintegration journey model that outlines the facilitating and limiting factors at three specific stages of the reintegration process: AP support; reintegration planning; reintegration and MSS support. Bringing together multiple stakeholder perspectives from a variety of data sources, this model can serve as a framework for practitioners involved within the reintegration process. This review evidences variability in the methodological quality of the reintegration research evidence and outlines recommendations for future research.